By Kyle Mew, Rick Boyer
The Android OS has the most important set up base of any working procedure on the planet; there hasn't ever been a greater time to benefit Android improvement to write down your personal functions, or to make your personal contributions to the open resource community!
This “cookbook” will make it effortless so that you can bounce to a subject of curiosity and get what you must enforce the function on your personal program. while you're new to Android and examine top via “doing,” then this ebook will supply many subject matters of interest.
Starting with the fundamentals of Android improvement, we movement directly to extra complex recommendations, and we'll advisor you thru universal initiatives builders fight to unravel. the 1st few chapters hide the fundamentals together with actions, Layouts, Widgets, and the Menu. From there, we hide fragments and information garage (including SQLite), gadget sensors, the digicam, and GPS. Then we movement on extra complex issues corresponding to snap shots and animation (including OpenGL), multi-threading with AsyncTask, and net performance with Volley. We'll additionally reveal Google Maps and Google Cloud Messaging (also referred to as Push Notifications) utilizing the Google API Library.
Finally, we'll have a look at a number of on-line companies designed specifically for Android improvement. Take your software big-time with complete web net providers with no need to turn into a server admin through leveraging the ability of Backend as a carrier (BaaS) prone.
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Extra info for Android Application Development Cookbook Second Edition
The intent object is very flexible and already supports basic data types. Go back to Android Studio and click on the putExtra method. Then hit Ctrl and the Spacebar. Android Studio will bring up the autocomplete list so that you can see the different data types that you can store. Returning a result from an activity Being able to start one activity from another is all well and good, but we will often need to know how the called activity has fared in its task or even which activity has been called.
These are defined with the layout_height and layout_width parameters. We can access this layout information from the code with the getLayoutParams() method. The layout information includes the layout height, width, margins, and any class-specific parameters. In this example, we moved the button on each click by obtaining the button LayoutParams and changing the margin. Optimizing layouts with the Hierarchy Viewer Before you can start optimizing your layouts, it helps to understand the Android layout process.
Then hit Ctrl and the Spacebar. Android Studio will bring up the autocomplete list so that you can see the different data types that you can store. Returning a result from an activity Being able to start one activity from another is all well and good, but we will often need to know how the called activity has fared in its task or even which activity has been called. The startActivityForResult() method provides the solution. Getting ready Returning a result from an activity is not very different from the way we just called the activity in the previous recipes.
Android Application Development Cookbook Second Edition by Kyle Mew, Rick Boyer